Online PHP editor | output for QQDJW

@ 2014-03-02T19:05:32Z

<?php
/*
*	PHP 5.6 Variadics allow us to pack arguments into arrays from the function prototype!
*   Typically you would use a combination of func_get_args and array_slice to grab these
*   function arguments from the stack frame, but Variadics make the syntax much nicer.
*	The function prototype is easier to read and more clearly signifies that it's a 
*	Variadic function...
*/

// Pre PHP 5.6 you would do the following ...
function bond($agent) {
    $bondingAgents = array_slice(func_get_args(), 1);
    $bonding = "";
    foreach ($bondingAgents as $bond) {
        $bonding .= "$agent-$bond\n";
    }
    return $bonding;
}

// With PHp 5.6 you cna do this instead ...
function newBond($agent, ...$bondingAgents) {
    $bonding = "";
    foreach($bondingAgents as $bond) {
        $bonding .= "$agent-$bond\n";
    }
    return $bonding;
}

header('Content-type: text/plain');

echo "Pre-5.6 Result...\n\n";
echo bond("Hydrogen", "Oxide", "Peroxide", "Dioxide");

echo "5.6 Result...\n\n";
echo newBond("Hydrogen", "Oxide", "Peroxide", "Dioxide");

Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Pre-5.6 Result... Hydrogen-Oxide Hydrogen-Peroxide Hydrogen-Dioxide 5.6 Result... Hydrogen-Oxide Hydrogen-Peroxide Hydrogen-Dioxide
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35: Parse error: syntax error, unexpected '.', expecting '&' or variable (T_VARIABLE) in /in/QQDJW on line 21
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29: Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE in /in/QQDJW on line 21
Process exited with code 255.
Output for 5.0.0 - 5.0.5: Parse error: parse error, unexpected '.', expecting '&' or T_VARIABLE in /in/QQDJW on line 21
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected '.', expecting '&' or T_VARIABLE or T_CONST in /in/QQDJW on line 21
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected '.', expecting '&' or T_VARIABLE or T_CONST in /in/QQDJW on line 21
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/QQDJW on line 21
Process exited with code 255.

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